Recently I found this useful CSS article by Shaun Inman. The article is title CSS Qualified Selectors – some advanced CSS stuff.

Some sneek peek:

To remove the img border that
…contained checkbox is disabled? The pointer cursor is misleading (since the label’s checkbox can’t be un/checked). Currently we need to manually class the label (or disable an additional arbitrary parent element) to correct this. With Qualified Selectors (combined with attribute selectors) we could just write:
label < input[disabled]
{
cursor: default;
}